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� OSTP Mound Design �� <br /> UNIVERSITY .°���� � w <br /> Minnesota Potlution 0 C <br /> CpntrQlAgency ��������� � ��� ✓�ape OF MINNESOTA ��x�� �;�;�r,,,, <br /> 1. SYSTEM SIZING: Project ID: 15-0490 v 06.12.13 <br /> A, aesi�n�ow: �So ��� TABLE IXa <br /> B. Soil Loading Rate: 0.45 GPD/ftZ �OADING RATE4 FOR DETERMINING 807TOM ABSORPTION AREA <br /> AND AB50&P'TION FtATiOS USING PERGQLATION TE5T5 <br /> TrratmeM Level C Ttaatme�c levN A,A-2,6, <br /> C. �epth to Limiting Candition: 1.0 ft <br /> Veraolatlo�Race ���0� #b� �� Mow�d <br /> D. Percent ta�d Stape: 8.0 � �,�',► u!pa�^R "�'O"�'dO° �a,�u� "'�Qfa"O° <br /> E. Design Media Loading Rate: 1.0 GpD/ft {�'} �� ��? R� <br /> z <br /> <a, � � <br /> F. Mou�d Absorption Ratio: 2,60 "7°' �.� 1 1.6 � <br /> p t to 5(lirm sArxt 0.6 2 1 1.6 <br /> Teble 1 aad Wsnn•t�ne:r:irxC <br /> MOUNP C�NTOUR!(?ADtNG itA7ES: r''A75 0.�s t.s t t.s <br /> GOntqur �R�aJO 0.6 2 0.T8 2 <br /> r�:easurod �R TQxturo-dv�ivod Loading 3z co:is o.s z.a o:7e z <br /> Parc Rat� n�osu�d absorptioo e�tio <br /> . �''t$: ��Q�� o.as 2.s a.s z.s <br /> :.sa�,r.?'• 1.0. 1.3.2.t�.2.a.2.6 �1� s,,�,an . s a.a s.a <br /> . >,za . . . . <br /> 5i-i2a�jtpi C�R 5.0 _iz <br /> . 'Systems with these values are not 7ype I systems. <br /> , ,�,a,,,�;� ,�Q. _5. Contour Loading Rate(t9near loading rate)is a <br /> recommended vatue. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Catcutate Dispersat Bed Area: Design Ftow�Design Media Loading Rate=ftZ <br /> 750 GPD � LO GPD/ftZ = 750 ftZ <br /> If a larger dispersal media area is desired,enter size;[�ft2 <br /> B. Enter Dispersal Bed Width: 10.0 ft Can not exceed l0 feet <br /> C. Calculate Contour l.oading Rate: Bed Width X Design Media Laading Rate <br /> �� ftz X 1•0 GPD/ftZ = 10.0 gaUft Can not exceed Toble t <br /> D. Calculate Minimum Dispersal Bed Length: Dispersal Bed Area : Bed Width = Bed Length <br /> ��Q ft2 = tO.Q ft = 75.0 ft <br /> 3. ABSORPTION AREA SIZING <br /> A. Calculate Absorptian Width: Bed Width X Mound Absorption Ratio =Absarption Width <br /> 10.0 ft X 2.6 = 26.0 ft <br /> B. For slopes>1%, the Absorptian Width is measured dow�hitl from the upslope edge of the Bed. <br /> Catculate Downslope Absorptron Width:Absorption Width - Bed Width <br /> 26.0 ft - 10.0 ft = 16.0 ft <br /> . DISTRIBUTION MEDIA: ROCK <br /> A. Media Volume: Media Depth X Length X Width <br /> 1.W ft X 75.Q ft X 10.0 ft= 750 ftJ � 27 = 2,6 yd3 <br />